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New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 2 of 14
© 2015 Cengage Learning
End of Tutorial Material 12
Glossary of Key Terms 13
Tutorial Objectives
Students will have mastered the material in Tutorial Two when they can:
Session 2.1
⚫ Review the principles of data validation
⚫ Create a DOCTYPE
⚫ Declare XML elements and define their
content
⚫ Define the structure of child elements
Session 2.2
⚫ Declare attributes
⚫ Set rules for attribute content
⚫ Define optional and required attributes
⚫ Validate an XML document
Session 2.3
⚫ Place internal and external content in an
entity
⚫ Create entity references
⚫ Understand how to store code in
parameter entities
⚫ Create comments in a DTD
⚫ Understand how to create conditional
sections
⚫ Understand how to create entities for non-
character data
⚫ Understand how to validate standard
vocabularies
XML 68: Creating a Valid Document
LECTURE NOTES
Explain what a DTD can do when used in conjunction with an XML parser that supports data
validation
Discuss what a DOCTYPE is and its purpose
Review the two parts a DOCTYPE can be divided into
Explain the reason for creating a public identifier for a DTD
Illustrate the differences between external and internal subsets used in a DOCTYPE
BOXES
TIP: The root value in the DOCTYPE must match the name of the XML document’s root element;
otherwise,parsers will reject the document as invalid.(XML 71)
InSight: Understanding URIs (XML 72)
ProSkills: Written Communication: Interpreting Public Identifiers (XML 73)
Reference: Declaring a DTD (XML 74)
FIGURES
Figure 2-1, Figure 2-2, Figure 2-3, Figure 2-4, Figure 2-5
TEACHER TIP
Provide students with a table like the one in Figure 2-1, marking which fields, if any, are optional, and ask
them to devise the corresponding structure for the data in the document, like the one shown in Figure 2-3.
CLASSROOM ACTIVITIES
1. GroupActivity: Present students with scenarios and ask them to determine the kind of DOCTYPE
statement the scenario would require. For example, if a company is using a standard XML vocabulary
like MathML, what kind of statement is required? (Answer: A public identifier) If a company has
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 3 of 14
© 2015 Cengage Learning
developed a customized XML parser to read its XML documents, what is required? (Answer: An
external file with a system identifier)
2. Quick Quiz:
A DTD can be used to .
a. ensure that all required elements are present in a document
b. prevent undefined elements from being used in a document
c. define default values for attributes
d. All of these are correct.
(Answer: D)
A(n) subset is a set of declarations placed within the XML document. (Answer:
internal)
True/False: An internal DTD can be easily used as a common DTD among many documents,
forcing them to use the same elements, attributes, and document structure. (Answer: False)
XML 75: Declaring Document Elements
LECTURE NOTES
Explain the meaning of an element type declaration
Illustrate the differences between elements that can contain any data, empty elements, and parsed
character data
BOXES
TIP: Element declarations must begin with <!ELEMENT in all uppercase letters and not <!Element
or <!element. (XML 75)
Reference: Specifying Types of Element Content (XML 77)
FIGURES
Figure 2-6
TEACHER TIP
Ask students to brainstorm examples of elements that would fall under each of the five types of content
models. The more examples that you can go over with them, the more it will help students understand the
various types of elements.
CLASSROOM ACTIVITIES
1. GroupActivity: Present students with examples of elements that have been declared to be of a
particular type and then are invalid, and ask students to explain how to correct the element so it
complies with its assigned type.
2. Quick Quiz:
An element declaration can specify all of the following except .
a. the reserved symbols that the element name can contain
b. the element’s name
c. what kind of content the element can contain
d. the order in which elements appear in the document
(Answer: A)
An element declared as cannot store any content. (Answer: empty)
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 4 of 14
© 2015 Cengage Learning
True/False: Generally, elements are declared as being of type ANY or #PCDATA. (Answer:
False)
XML 78: Working with Child Elements
LECTURE NOTES
Explain how to declare an element that contains child elements
Discuss the two ways to declare an element that has multiple child elements
Define a modifying symbol and describe its uses
BOXES
Reference: Specifying Child Elements (XML 80)
TIP: You can specify that an element contains a minimum number of a child element by entering
duplicate elements equal to the minimum number and adding a + to the last one. (XML 80)
Reference: Applying Modifying Symbols (XML 81)
InSight: DTDs and Mixed Content (XML 83)
Review:Session 2.1 Quick Check (XML 83)
FIGURES
Figure 2-7
TEACHER TIP
Present students with examples of elements that have been declared to be of a particular type and then are
invalid, and ask students to explain how to correct the elements so they comply with their assigned type.
This will help them to understand child elements better.
CLASSROOM ACTIVITIES
1. GroupActivity: Describe in words the child elements a parent element must contain (for example,“a
citizen must have a state or a province code, but not both”) and ask students to write the element
declarations that correspond to the examples presented. Another exercise would be to present a list of
child elements (e.g., name, company) and ask what element declaration allows the given list of child
elements, making sure to remind students that modifying symbols add extra possible solutions.
2. Quick Quiz:
True/False: For content that involves multiple child elements, you can specify the elements in
either a sequence or a choice of elements. (Answer: True)
A is a list of elements that follow a defined order.
a. choice
b. source
c. sequence
d. series
(Answer: C)
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 5 of 14
© 2015 Cengage Learning
A(n) symbol specifies the number of occurrences of each child element. (Answer:
modifying)
LAB ACTIVITY
Have students begin to construct a DTD for the following situation:
Students who have student ID, first name, last name, email, phone
Courses which have course ID, description, and number of credits
Grade records which have record ID, student ID, course ID, and grade
They should create the main elements and then specify the children. Students may have more than one
phone number and email address.
XML 86: Declaring Attributes
LECTURE NOTES
Review the various purposes of an attribute list declaration
Discuss the different ways to declare elements with multiple attributes
BOXES
Reference: Declaring Attributes in a DTD (XML 87)
FIGURES
Figure 2-8, Figure 2-9
TEACHER TIP
Stress that right now the attribute declarations would be rejected since the attribute types are not specified.
As with the other sections, go through several examples to help students understand the process.
CLASSROOM ACTIVITIES
1. Class Discussion: Ask students to come up with attributes for a course element. What attributes
would they have? How would they be specified in a DTD?
2. Quick Quiz:
True/False: If a parser encounters more than one declaration for the same attribute, it only
recognizes the second statement and ignores the first. (Answer: False)
Which of the following is true of attribute-list declarations?
a. They must be located at the beginning of the DTD.
b. They must be located at the end of the DTD.
c. They must be located adjacent to the declaration for the element with which they are
associated.
d. They can be located anywhere within the DTD.
(Answer: D)
To enforce attribution properties on a document, you must add a(n) to the
document’s DTD. (Answer: attribute-list declaration)
XML 89 Working with Attribute Types
LECTURE NOTES
Discuss different data types that DTDs support for attribute values
Explain the differences in character data and enumerated types of attribute values
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 6 of 14
© 2015 Cengage Learning
Discuss the four types of tokens that DTDs support
BOXES
TIP: You’ll learn more about default attribute values later in this tutorial. (XML 90)
TIP: Because an ID must be valid XML names, it cannot begin with a number. Commonly used
identifiers, such as Social Security numbers, must be prefaced with one or more alphabetical
characters, such as SS123-45-6789. (XML 93)
FIGURES
Figure 2-10, Figure 2-11, Figure 2-12, Figure 2-13
TEACHER TIP
Point out the fact that quantities, to which students would expect to assign a data type of “integer” or
“number,” are expressed as being of type “CDATA.” If they have programmed at all before, they may be
confused about this. Caution students that the use of the IDREF token requires that there be a matching
attribute to be cross-referenced, or the document will be rejected as invalid.
CLASSROOM ACTIVITIES
1. GroupActivity: Ask students to brainstorm scenarios in which enumerated-type attributes would be
useful because the values must be limited to a known, bounded set.
2. Quick Quiz:
The simplest form for attribute text is .
a. CDATA
b. ID
c. enumerated list
d. NMTOKEN
(Answer: A)
Attributes that are limited to a set of possible values are known as types. (Answer:
enumerated)
True/False: Tokens are used when an attribute value refers to a file containing nontextual data,
like a graphic image or a video clip. (Answer: False)
XML 95: Working with Attribute Defaults
LECTURE NOTES
Review the four types of attribute defaults and explain their uses
Demonstrate how to declare each of the four types
BOXES
TIP: If you specify a default value for an attribute, omit #REQUIRED and #IMPLIED from the
attribute declaration so parsersdon’t reject the DTD. (XML 95)
Reference: Specifying the Attribute Default (XML 96)
FIGURES
Figure 2-14, Figure 2-15
TEACHER TIP
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 7 of 14
© 2015 Cengage Learning
In studying XML, students often worry that there are too many options to remember. Provide more
examples and ask students to contribute a few; thiswill help students to remember the various options.
CLASSROOM ACTIVITIES
1. Class Discussion: Ask students to break into teams. Have them devise scenarios that allow them to
provide examples of the uses of each of the attribute defaults in Figure 2-14. Have them discuss their
results with each other.
2. Quick Quiz:
You can indicate that a given element must always have a particular attribute by adding the
value to the attribute declaration.
a. #FIXED
b. #REQUIRED
c. #IMPLIED
d. #MANDATED
(Answer: B)
The value for an attribute indicates that the use of this attribute is optional.
(Answer: #implied)
XML 97: Validating an XML Document
LECTURE NOTES
Discuss the process of validating an XML document
Explain how to correct common errors
BOXES
TIP: You can also press F7 (Windows) of fn+F7(Mac) to validate a document in Exchanger
XMLEditor. (XML 98)
ProSkills: Problem Solving: ReconcilingDTDs and Namespaces (XML 102)
Review:Session 2.2 Quick Check (XML 103)
FIGURES
Figure 2-16, Figure 2-17, Figure 2-18, Figure 2-19, Figure 2-20
TEACHER TIP
As the text example shows, go through a document with errors and let students see how to correct them.
This really helps them prepare for when they are on their own and validating their work.
CLASSROOM ACTIVITIES
1. GroupActivity: If you have a computer with a projection device, use it to open valid XML code and
make changes to it, creating some errors on purpose, in order to illustrate the kinds of errors students
will become familiar with as they do more coding in XML.
2. Quick Quiz:
True/False: You can use Internet Explorer’s MSXML parser to validate your XML document
yourself. (Answer: False)
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 8 of 14
© 2015 Cengage Learning
LAB ACTIVITY
Students should now add attributes to their DTD. For “phone,” they should add a phoneType
attribute that identifies the phone as home, work, or cell. For “email,” there should be an emailType
attribute that identifies the email address as home, work, or school. For “first name,” they can add
an attribute of title. Also, the record “no” for grade should include semester and year attributes,
which will be used to indicate which semester and year the grade was given for a course. The grade
record attributes are required. Have the students specify default values where appropriate.
Students should create an XML file to go along with this (or you can provide one if you like), and
then they should validate their work.
XML 106: Introducing Entities
LECTURE NOTES
Identify the five built-in entities supported by XML
Discuss the usefulness of creating customized entities
FIGURES
Figure 2-21
TEACHER TIP
Stress that entities can be used to avoid data entry errors. An analogy from outside programming is macros,
such as Microsoft Word’s AutoText feature, which allows a few keystrokes to represent a longer character
string.
CLASSROOM ACTIVITIES
1. Class Discussion: Can students think of scenarios when they might use a customized entity?
2. Quick Quiz:
Which of the following is not a built-in XML entity?
a. &lt;
b. &amp;
c. &quot;
d. &posit;
(Answer: D)
True/False: Using entities can help you to avoid data errors. (Answer: True)
XML 106: Working with General Entities
LECTURE NOTES
Identify the differences between general, external, and internal entities
Explain that the content referenced by an entity can be either parsed or unparsed
Explain how to create a parsed entity
Illustrate how to reference a general entity
BOXES
TIP: For a long text string that will be repeated throughout an XML document, avoid data entry
errors by placing the text string in its own entity.(XML 106)
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 9 of 14
© 2015 Cengage Learning
TIP: Including markup tags in an entity value lets you create a section of XML code and content,
and insert it once or multiple times into a document. (XML 107)
Reference: Declaring and ReferencingParsed Entities (XML 108)
FIGURES
Figure 2-22, Figure 2-23,Figure 2-24,Figure 2-25,Figure 2-26,Figure 2-27
TEACHER TIP
Caution students that if they use an external file, it must contain well-formed XML content and no XML
declaration. Emphasize that students must handle the & and % symbols with careful consideration.
CLASSROOM ACTIVITIES
1. GroupActivity: Present students with a series of types of content and ask them to characterize what
type of entity could be used to reference them (e.g., a paragraph of text inside the DTD would be an
internal parsed entity; a video file would be an unparsed external entity).
2. Quick Quiz:
True/False: You cannot use the hyphen character in an entity’s value because this is the symbol
used for inserting parameter entities. (Answer: False)
Which of the following entity types would reference a video file?
a. unparsed internal
b. parsed internal
c. unparsed external
d. parsed external
(Answer: C)
A(n) entity is an entity that references content to be used within an XML
document. (Answer: general)
XML 113: Working with Parameter Entities
LECTURE NOTES
Explain that a parameter entity is used to insert content into the DTD because it can be used to
break it into modules
Demonstrate how to declare parameter entities and then reference them
BOXES
TIP: Note that when declaring a parameter entity, you include a space after the %; but when
referencing a parameter entity, there is no space between the % and the entity name. (XML 114)
Reference: Declaring and ReferencingParameter Entities (XML 115)
FIGURES
Figure 2-28
TEACHER TIP
Make sure to point out that not all browsers support external entities in combination with DTDs.
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 10 of 14
© 2015 Cengage Learning
CLASSROOM ACTIVITIES
1. GroupActivity: Have students come up with scenarios when parameters may be used, and then have
themcreate declarations for the scenarios.
2. Quick Quiz:
You use a(n) to insert content into a DTD. (Answer: parameter entity)
True/False: Firefox browsers allow external entities in combination with DTDs. (Answer: False)
XML115: Inserting Comments into a DTD
LECTURE NOTES
Explain how to put comments into a DTD
Give examples of how documenting code in comments is beneficial
BOXES
ProSkills: Teamwork: Documenting Shared Code with Comments (XML 115)
FIGURES
Figure 2-29
TEACHER TIP
Let students know that comments can also be useful to explain the browser compatibility issues.
CLASSROOM ACTIVITIES
1. Class Discussion: Have students brainstorm ways to use comments in their DTDs.
XML 116: Creating Conditional Sections
LECTURE NOTES
Explain how to create a conditional section in an external DTD to either include or ignore sections
of the declaration
Discuss the best ways to use conditional sections
TEACHER TIP
Remind students thatconditional sections cannot be applied to internal DTDs.
CLASSROOM ACTIVITIES
1. Class Discussion: If you have a computer with a projection device, show a couple of examples of
conditional sections. Can students think of other uses?
2. Quick Quiz:
True/False: One effective way of creating IGNORE sections is to create a parameter entity that
defines when the section should be included or not. (Answer: True)
XML 117: Working with Unparsed Data
LECTURE NOTES
Discuss the steps involved when working with unparsed data
Demonstrate how to declare a notation to identify the data type of the unparsed data
Explain how to create an unparsed entity that references specific items that use a notation
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 11 of 14
© 2015 Cengage Learning
BOXES
TIP: As an alternative to notations, you can place a URL that lists a resource for nontextual content
in an element or attribute, and then allow your application to work with that element or attribute
value directly. (XML 118)
Reference: Declaring an Unparsed Entity (XML 119)
TEACHER TIP
Stress that the notation will not necessarily enable an application to open. Current Web browsers may not
support notation mechanisms to display files from helper applications.
CLASSROOM ACTIVITIES
1. GroupActivity: Ask students to brainstorm scenarios in which unparsed data would be useful to an
XML document.
2. Quick Quiz:
1. True/False: Current Web browsers support mechanisms for validating and rendering unparsed
data declared in the DTDs of XML documents. (Answer: False)
2. True/False: An alternate to notations is to place a URL in an element or attribute. (Answer:
True)
XML 119: Validating Standard Vocabularies
LECTURE NOTES
Discuss how to validate a standard XML vocabulary by specifying an external DTD
Review the different DOCTYPEs for standard vocabularies
BOXES
InSight: Advantages and Disadvantages of DTDs (XML 121)
Review:Session 2.3 Quick Check (XML 121)
FIGURES
Figure 2-30, Figure 2-31
TEACHER TIP
The online validator by W3C is a great tool. Show how to use it to validate and fix errors so that students
can become familiar with common errors.
CLASSROOM ACTIVITIES
1. GroupActivity: If you have a computer with a projection device, use it to show a portion of the
XHTML 1.0 strict DTD from W3C.org for another element or elements.
2. Quick Quiz:
True/False: Most standard vocabularies make their DTDs available online for inspection.
(Answer: True)
True/False:The W3C does not provide an online validator.(Answer: False)
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 12 of 14
© 2015 Cengage Learning
LAB ACTIVITY
Students are going to modify the grades section of their XML document to include a reference to the
professor. They should modify their DTD to add the professor element. They should create elements for
five professors called prof1, prof2, prof3, prof4, and prof5. The elements should contain the professor’s
name and title (i.e., John Smith, Associate Professor). Then, in the XML, they should just reference the
entity when referring to the professor. They should then add appropriate comments to their work.
Finally, have the students validate their work again to make sure it is correct.
End of Tutorial Material
SAM Assessment, Training, and Projects: This text is available with SAM Assessment, Training, and
Projects that map directly to the learning objectives covered in each chapter. SAM's active, hands-
on training and skill-based assessment help you master Microsoft Office skills. SAM Projects let you
apply skills in real-world scenarios using the actual Microsoft Office applications. Immediate
feedback and comprehensive study guides give you the practice and support you need to succeed.
To obtain a SAM account, visit www.cengagebrain.com or contact your instructor or bookstore for
additional information.
Review Assignments: Review Assignments provide students with additional practice of the skills
they learned in the tutorial using the same tutorial case, with which they are already familiar. These
assignments are designed as straight practice only and should not include anything of an
exploratory nature.
Case Problems:A typical NP tutorial has four Case Problems following the Review Assignments.
Short tutorials can have fewer Case Problems (or none at all); other tutorials may have five Case
Problems. The Case Problems provide further hands-on assessment of the skills and topics presented
in the tutorial, but with new case scenarios. There are four types of Case Problems:
Apply. In this type of Case Problem, students apply the skills that they have learned in
the tutorial to solve a problem. “Apply” Case Problems can include “Explore” steps,
which go a bit beyond what was presented in the tutorial, but should include only 1 or 2
Explore steps if any at all.
Create. In a “Create” Case Problem, students are either shown the end result, such as a
finished Word document, and asked to create the document based on the figure
provided; or, students are asked to create something from scratch in a more free-form
manner.
Challenge.A “Challenge” Case problem involves 3 or more Explore steps. These steps
challenge students by having them go beyond what was covered in the tutorial, either
with guidance in the step or by using online Help as directed.
Research.In this type of Case Problem, students need to go to the Web to find
information that they will incorporate somehow in their work for the Case Problem.
A tutorial does not have to include each of the four types of Case Problems; rather, the tutorial’s
content should dictate the types of exercises written. It’s possible, therefore, that some tutorials
might have three Case Problems of one type and only one Case Problem of a different type. To the
extent possible, the first Case Problem in a tutorial should be an “Apply,” so that the Case Problems
progress in degree of difficulty.
ProSkills Exercises:ProSkills exercises integrate the technology skills students learn with one or
more of the following soft skills: decision making, problem solving, teamwork, verbal
communication, and written communication. The goal of these exercises is to enhance students’
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 13 of 14
© 2015 Cengage Learning
understanding of the soft skills and how to apply them appropriately in real-world, professional
situations that also involve software application skills. ProSkills exercises are offered at various
points throughout a text, encompassing the concepts and skills presented in a standalone tutorial or
a group of related tutorials.
Glossary of Key Terms
#IMPLIED (XML 85) mixed content (XML 83)
#PCDATA (XML 67) modifying symbol (XML 67)
#REQUIRED (XML 85) module (XML 113)
attribute declaration (XML 84) NMTOKEN (XML94)
attribute-list declaration (XML 84) NMTOKENS (XML95)
CDATA data type (XML85) notation (XML 92) (XML 117)
conditional section (XML 116) parameter entity (XML106) (XML 113)
DOCTYPE (XML71) parsed entity (XML 104)
document type declaration (XML71) public identifier (XML 72)
element declaration (XML66) sequence (XML 67)
element type declaration (XML66) system identifier (XML 71)
enumerated type (XML 85) tokenized type (XML 92)
external entity (XML106) token (XML 92)
external subset (XML 71) unparsed entity (XML106)
formal public identifier (XML 72)
general entity (XML 104)
ID token (XML 92)
ID token type (XML 85)
IDREF token (XML 93)
IDREF token type (XML 85)
internal entity (XML 104)
internal subset (XML 71)
New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 14 of 14
© 2015 Cengage Learning
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  • 5. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 2 of 14 © 2015 Cengage Learning End of Tutorial Material 12 Glossary of Key Terms 13 Tutorial Objectives Students will have mastered the material in Tutorial Two when they can: Session 2.1 ⚫ Review the principles of data validation ⚫ Create a DOCTYPE ⚫ Declare XML elements and define their content ⚫ Define the structure of child elements Session 2.2 ⚫ Declare attributes ⚫ Set rules for attribute content ⚫ Define optional and required attributes ⚫ Validate an XML document Session 2.3 ⚫ Place internal and external content in an entity ⚫ Create entity references ⚫ Understand how to store code in parameter entities ⚫ Create comments in a DTD ⚫ Understand how to create conditional sections ⚫ Understand how to create entities for non- character data ⚫ Understand how to validate standard vocabularies XML 68: Creating a Valid Document LECTURE NOTES Explain what a DTD can do when used in conjunction with an XML parser that supports data validation Discuss what a DOCTYPE is and its purpose Review the two parts a DOCTYPE can be divided into Explain the reason for creating a public identifier for a DTD Illustrate the differences between external and internal subsets used in a DOCTYPE BOXES TIP: The root value in the DOCTYPE must match the name of the XML document’s root element; otherwise,parsers will reject the document as invalid.(XML 71) InSight: Understanding URIs (XML 72) ProSkills: Written Communication: Interpreting Public Identifiers (XML 73) Reference: Declaring a DTD (XML 74) FIGURES Figure 2-1, Figure 2-2, Figure 2-3, Figure 2-4, Figure 2-5 TEACHER TIP Provide students with a table like the one in Figure 2-1, marking which fields, if any, are optional, and ask them to devise the corresponding structure for the data in the document, like the one shown in Figure 2-3. CLASSROOM ACTIVITIES 1. GroupActivity: Present students with scenarios and ask them to determine the kind of DOCTYPE statement the scenario would require. For example, if a company is using a standard XML vocabulary like MathML, what kind of statement is required? (Answer: A public identifier) If a company has
  • 6. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 3 of 14 © 2015 Cengage Learning developed a customized XML parser to read its XML documents, what is required? (Answer: An external file with a system identifier) 2. Quick Quiz: A DTD can be used to . a. ensure that all required elements are present in a document b. prevent undefined elements from being used in a document c. define default values for attributes d. All of these are correct. (Answer: D) A(n) subset is a set of declarations placed within the XML document. (Answer: internal) True/False: An internal DTD can be easily used as a common DTD among many documents, forcing them to use the same elements, attributes, and document structure. (Answer: False) XML 75: Declaring Document Elements LECTURE NOTES Explain the meaning of an element type declaration Illustrate the differences between elements that can contain any data, empty elements, and parsed character data BOXES TIP: Element declarations must begin with <!ELEMENT in all uppercase letters and not <!Element or <!element. (XML 75) Reference: Specifying Types of Element Content (XML 77) FIGURES Figure 2-6 TEACHER TIP Ask students to brainstorm examples of elements that would fall under each of the five types of content models. The more examples that you can go over with them, the more it will help students understand the various types of elements. CLASSROOM ACTIVITIES 1. GroupActivity: Present students with examples of elements that have been declared to be of a particular type and then are invalid, and ask students to explain how to correct the element so it complies with its assigned type. 2. Quick Quiz: An element declaration can specify all of the following except . a. the reserved symbols that the element name can contain b. the element’s name c. what kind of content the element can contain d. the order in which elements appear in the document (Answer: A) An element declared as cannot store any content. (Answer: empty)
  • 7. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 4 of 14 © 2015 Cengage Learning True/False: Generally, elements are declared as being of type ANY or #PCDATA. (Answer: False) XML 78: Working with Child Elements LECTURE NOTES Explain how to declare an element that contains child elements Discuss the two ways to declare an element that has multiple child elements Define a modifying symbol and describe its uses BOXES Reference: Specifying Child Elements (XML 80) TIP: You can specify that an element contains a minimum number of a child element by entering duplicate elements equal to the minimum number and adding a + to the last one. (XML 80) Reference: Applying Modifying Symbols (XML 81) InSight: DTDs and Mixed Content (XML 83) Review:Session 2.1 Quick Check (XML 83) FIGURES Figure 2-7 TEACHER TIP Present students with examples of elements that have been declared to be of a particular type and then are invalid, and ask students to explain how to correct the elements so they comply with their assigned type. This will help them to understand child elements better. CLASSROOM ACTIVITIES 1. GroupActivity: Describe in words the child elements a parent element must contain (for example,“a citizen must have a state or a province code, but not both”) and ask students to write the element declarations that correspond to the examples presented. Another exercise would be to present a list of child elements (e.g., name, company) and ask what element declaration allows the given list of child elements, making sure to remind students that modifying symbols add extra possible solutions. 2. Quick Quiz: True/False: For content that involves multiple child elements, you can specify the elements in either a sequence or a choice of elements. (Answer: True) A is a list of elements that follow a defined order. a. choice b. source c. sequence d. series (Answer: C)
  • 8. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 5 of 14 © 2015 Cengage Learning A(n) symbol specifies the number of occurrences of each child element. (Answer: modifying) LAB ACTIVITY Have students begin to construct a DTD for the following situation: Students who have student ID, first name, last name, email, phone Courses which have course ID, description, and number of credits Grade records which have record ID, student ID, course ID, and grade They should create the main elements and then specify the children. Students may have more than one phone number and email address. XML 86: Declaring Attributes LECTURE NOTES Review the various purposes of an attribute list declaration Discuss the different ways to declare elements with multiple attributes BOXES Reference: Declaring Attributes in a DTD (XML 87) FIGURES Figure 2-8, Figure 2-9 TEACHER TIP Stress that right now the attribute declarations would be rejected since the attribute types are not specified. As with the other sections, go through several examples to help students understand the process. CLASSROOM ACTIVITIES 1. Class Discussion: Ask students to come up with attributes for a course element. What attributes would they have? How would they be specified in a DTD? 2. Quick Quiz: True/False: If a parser encounters more than one declaration for the same attribute, it only recognizes the second statement and ignores the first. (Answer: False) Which of the following is true of attribute-list declarations? a. They must be located at the beginning of the DTD. b. They must be located at the end of the DTD. c. They must be located adjacent to the declaration for the element with which they are associated. d. They can be located anywhere within the DTD. (Answer: D) To enforce attribution properties on a document, you must add a(n) to the document’s DTD. (Answer: attribute-list declaration) XML 89 Working with Attribute Types LECTURE NOTES Discuss different data types that DTDs support for attribute values Explain the differences in character data and enumerated types of attribute values
  • 9. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 6 of 14 © 2015 Cengage Learning Discuss the four types of tokens that DTDs support BOXES TIP: You’ll learn more about default attribute values later in this tutorial. (XML 90) TIP: Because an ID must be valid XML names, it cannot begin with a number. Commonly used identifiers, such as Social Security numbers, must be prefaced with one or more alphabetical characters, such as SS123-45-6789. (XML 93) FIGURES Figure 2-10, Figure 2-11, Figure 2-12, Figure 2-13 TEACHER TIP Point out the fact that quantities, to which students would expect to assign a data type of “integer” or “number,” are expressed as being of type “CDATA.” If they have programmed at all before, they may be confused about this. Caution students that the use of the IDREF token requires that there be a matching attribute to be cross-referenced, or the document will be rejected as invalid. CLASSROOM ACTIVITIES 1. GroupActivity: Ask students to brainstorm scenarios in which enumerated-type attributes would be useful because the values must be limited to a known, bounded set. 2. Quick Quiz: The simplest form for attribute text is . a. CDATA b. ID c. enumerated list d. NMTOKEN (Answer: A) Attributes that are limited to a set of possible values are known as types. (Answer: enumerated) True/False: Tokens are used when an attribute value refers to a file containing nontextual data, like a graphic image or a video clip. (Answer: False) XML 95: Working with Attribute Defaults LECTURE NOTES Review the four types of attribute defaults and explain their uses Demonstrate how to declare each of the four types BOXES TIP: If you specify a default value for an attribute, omit #REQUIRED and #IMPLIED from the attribute declaration so parsersdon’t reject the DTD. (XML 95) Reference: Specifying the Attribute Default (XML 96) FIGURES Figure 2-14, Figure 2-15 TEACHER TIP
  • 10. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 7 of 14 © 2015 Cengage Learning In studying XML, students often worry that there are too many options to remember. Provide more examples and ask students to contribute a few; thiswill help students to remember the various options. CLASSROOM ACTIVITIES 1. Class Discussion: Ask students to break into teams. Have them devise scenarios that allow them to provide examples of the uses of each of the attribute defaults in Figure 2-14. Have them discuss their results with each other. 2. Quick Quiz: You can indicate that a given element must always have a particular attribute by adding the value to the attribute declaration. a. #FIXED b. #REQUIRED c. #IMPLIED d. #MANDATED (Answer: B) The value for an attribute indicates that the use of this attribute is optional. (Answer: #implied) XML 97: Validating an XML Document LECTURE NOTES Discuss the process of validating an XML document Explain how to correct common errors BOXES TIP: You can also press F7 (Windows) of fn+F7(Mac) to validate a document in Exchanger XMLEditor. (XML 98) ProSkills: Problem Solving: ReconcilingDTDs and Namespaces (XML 102) Review:Session 2.2 Quick Check (XML 103) FIGURES Figure 2-16, Figure 2-17, Figure 2-18, Figure 2-19, Figure 2-20 TEACHER TIP As the text example shows, go through a document with errors and let students see how to correct them. This really helps them prepare for when they are on their own and validating their work. CLASSROOM ACTIVITIES 1. GroupActivity: If you have a computer with a projection device, use it to open valid XML code and make changes to it, creating some errors on purpose, in order to illustrate the kinds of errors students will become familiar with as they do more coding in XML. 2. Quick Quiz: True/False: You can use Internet Explorer’s MSXML parser to validate your XML document yourself. (Answer: False)
  • 11. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 8 of 14 © 2015 Cengage Learning LAB ACTIVITY Students should now add attributes to their DTD. For “phone,” they should add a phoneType attribute that identifies the phone as home, work, or cell. For “email,” there should be an emailType attribute that identifies the email address as home, work, or school. For “first name,” they can add an attribute of title. Also, the record “no” for grade should include semester and year attributes, which will be used to indicate which semester and year the grade was given for a course. The grade record attributes are required. Have the students specify default values where appropriate. Students should create an XML file to go along with this (or you can provide one if you like), and then they should validate their work. XML 106: Introducing Entities LECTURE NOTES Identify the five built-in entities supported by XML Discuss the usefulness of creating customized entities FIGURES Figure 2-21 TEACHER TIP Stress that entities can be used to avoid data entry errors. An analogy from outside programming is macros, such as Microsoft Word’s AutoText feature, which allows a few keystrokes to represent a longer character string. CLASSROOM ACTIVITIES 1. Class Discussion: Can students think of scenarios when they might use a customized entity? 2. Quick Quiz: Which of the following is not a built-in XML entity? a. &lt; b. &amp; c. &quot; d. &posit; (Answer: D) True/False: Using entities can help you to avoid data errors. (Answer: True) XML 106: Working with General Entities LECTURE NOTES Identify the differences between general, external, and internal entities Explain that the content referenced by an entity can be either parsed or unparsed Explain how to create a parsed entity Illustrate how to reference a general entity BOXES TIP: For a long text string that will be repeated throughout an XML document, avoid data entry errors by placing the text string in its own entity.(XML 106)
  • 12. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 9 of 14 © 2015 Cengage Learning TIP: Including markup tags in an entity value lets you create a section of XML code and content, and insert it once or multiple times into a document. (XML 107) Reference: Declaring and ReferencingParsed Entities (XML 108) FIGURES Figure 2-22, Figure 2-23,Figure 2-24,Figure 2-25,Figure 2-26,Figure 2-27 TEACHER TIP Caution students that if they use an external file, it must contain well-formed XML content and no XML declaration. Emphasize that students must handle the & and % symbols with careful consideration. CLASSROOM ACTIVITIES 1. GroupActivity: Present students with a series of types of content and ask them to characterize what type of entity could be used to reference them (e.g., a paragraph of text inside the DTD would be an internal parsed entity; a video file would be an unparsed external entity). 2. Quick Quiz: True/False: You cannot use the hyphen character in an entity’s value because this is the symbol used for inserting parameter entities. (Answer: False) Which of the following entity types would reference a video file? a. unparsed internal b. parsed internal c. unparsed external d. parsed external (Answer: C) A(n) entity is an entity that references content to be used within an XML document. (Answer: general) XML 113: Working with Parameter Entities LECTURE NOTES Explain that a parameter entity is used to insert content into the DTD because it can be used to break it into modules Demonstrate how to declare parameter entities and then reference them BOXES TIP: Note that when declaring a parameter entity, you include a space after the %; but when referencing a parameter entity, there is no space between the % and the entity name. (XML 114) Reference: Declaring and ReferencingParameter Entities (XML 115) FIGURES Figure 2-28 TEACHER TIP Make sure to point out that not all browsers support external entities in combination with DTDs.
  • 13. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 10 of 14 © 2015 Cengage Learning CLASSROOM ACTIVITIES 1. GroupActivity: Have students come up with scenarios when parameters may be used, and then have themcreate declarations for the scenarios. 2. Quick Quiz: You use a(n) to insert content into a DTD. (Answer: parameter entity) True/False: Firefox browsers allow external entities in combination with DTDs. (Answer: False) XML115: Inserting Comments into a DTD LECTURE NOTES Explain how to put comments into a DTD Give examples of how documenting code in comments is beneficial BOXES ProSkills: Teamwork: Documenting Shared Code with Comments (XML 115) FIGURES Figure 2-29 TEACHER TIP Let students know that comments can also be useful to explain the browser compatibility issues. CLASSROOM ACTIVITIES 1. Class Discussion: Have students brainstorm ways to use comments in their DTDs. XML 116: Creating Conditional Sections LECTURE NOTES Explain how to create a conditional section in an external DTD to either include or ignore sections of the declaration Discuss the best ways to use conditional sections TEACHER TIP Remind students thatconditional sections cannot be applied to internal DTDs. CLASSROOM ACTIVITIES 1. Class Discussion: If you have a computer with a projection device, show a couple of examples of conditional sections. Can students think of other uses? 2. Quick Quiz: True/False: One effective way of creating IGNORE sections is to create a parameter entity that defines when the section should be included or not. (Answer: True) XML 117: Working with Unparsed Data LECTURE NOTES Discuss the steps involved when working with unparsed data Demonstrate how to declare a notation to identify the data type of the unparsed data Explain how to create an unparsed entity that references specific items that use a notation
  • 14. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 11 of 14 © 2015 Cengage Learning BOXES TIP: As an alternative to notations, you can place a URL that lists a resource for nontextual content in an element or attribute, and then allow your application to work with that element or attribute value directly. (XML 118) Reference: Declaring an Unparsed Entity (XML 119) TEACHER TIP Stress that the notation will not necessarily enable an application to open. Current Web browsers may not support notation mechanisms to display files from helper applications. CLASSROOM ACTIVITIES 1. GroupActivity: Ask students to brainstorm scenarios in which unparsed data would be useful to an XML document. 2. Quick Quiz: 1. True/False: Current Web browsers support mechanisms for validating and rendering unparsed data declared in the DTDs of XML documents. (Answer: False) 2. True/False: An alternate to notations is to place a URL in an element or attribute. (Answer: True) XML 119: Validating Standard Vocabularies LECTURE NOTES Discuss how to validate a standard XML vocabulary by specifying an external DTD Review the different DOCTYPEs for standard vocabularies BOXES InSight: Advantages and Disadvantages of DTDs (XML 121) Review:Session 2.3 Quick Check (XML 121) FIGURES Figure 2-30, Figure 2-31 TEACHER TIP The online validator by W3C is a great tool. Show how to use it to validate and fix errors so that students can become familiar with common errors. CLASSROOM ACTIVITIES 1. GroupActivity: If you have a computer with a projection device, use it to show a portion of the XHTML 1.0 strict DTD from W3C.org for another element or elements. 2. Quick Quiz: True/False: Most standard vocabularies make their DTDs available online for inspection. (Answer: True) True/False:The W3C does not provide an online validator.(Answer: False)
  • 15. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 12 of 14 © 2015 Cengage Learning LAB ACTIVITY Students are going to modify the grades section of their XML document to include a reference to the professor. They should modify their DTD to add the professor element. They should create elements for five professors called prof1, prof2, prof3, prof4, and prof5. The elements should contain the professor’s name and title (i.e., John Smith, Associate Professor). Then, in the XML, they should just reference the entity when referring to the professor. They should then add appropriate comments to their work. Finally, have the students validate their work again to make sure it is correct. End of Tutorial Material SAM Assessment, Training, and Projects: This text is available with SAM Assessment, Training, and Projects that map directly to the learning objectives covered in each chapter. SAM's active, hands- on training and skill-based assessment help you master Microsoft Office skills. SAM Projects let you apply skills in real-world scenarios using the actual Microsoft Office applications. Immediate feedback and comprehensive study guides give you the practice and support you need to succeed. To obtain a SAM account, visit www.cengagebrain.com or contact your instructor or bookstore for additional information. Review Assignments: Review Assignments provide students with additional practice of the skills they learned in the tutorial using the same tutorial case, with which they are already familiar. These assignments are designed as straight practice only and should not include anything of an exploratory nature. Case Problems:A typical NP tutorial has four Case Problems following the Review Assignments. Short tutorials can have fewer Case Problems (or none at all); other tutorials may have five Case Problems. The Case Problems provide further hands-on assessment of the skills and topics presented in the tutorial, but with new case scenarios. There are four types of Case Problems: Apply. In this type of Case Problem, students apply the skills that they have learned in the tutorial to solve a problem. “Apply” Case Problems can include “Explore” steps, which go a bit beyond what was presented in the tutorial, but should include only 1 or 2 Explore steps if any at all. Create. In a “Create” Case Problem, students are either shown the end result, such as a finished Word document, and asked to create the document based on the figure provided; or, students are asked to create something from scratch in a more free-form manner. Challenge.A “Challenge” Case problem involves 3 or more Explore steps. These steps challenge students by having them go beyond what was covered in the tutorial, either with guidance in the step or by using online Help as directed. Research.In this type of Case Problem, students need to go to the Web to find information that they will incorporate somehow in their work for the Case Problem. A tutorial does not have to include each of the four types of Case Problems; rather, the tutorial’s content should dictate the types of exercises written. It’s possible, therefore, that some tutorials might have three Case Problems of one type and only one Case Problem of a different type. To the extent possible, the first Case Problem in a tutorial should be an “Apply,” so that the Case Problems progress in degree of difficulty. ProSkills Exercises:ProSkills exercises integrate the technology skills students learn with one or more of the following soft skills: decision making, problem solving, teamwork, verbal communication, and written communication. The goal of these exercises is to enhance students’
  • 16. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 13 of 14 © 2015 Cengage Learning understanding of the soft skills and how to apply them appropriately in real-world, professional situations that also involve software application skills. ProSkills exercises are offered at various points throughout a text, encompassing the concepts and skills presented in a standalone tutorial or a group of related tutorials. Glossary of Key Terms #IMPLIED (XML 85) mixed content (XML 83) #PCDATA (XML 67) modifying symbol (XML 67) #REQUIRED (XML 85) module (XML 113) attribute declaration (XML 84) NMTOKEN (XML94) attribute-list declaration (XML 84) NMTOKENS (XML95) CDATA data type (XML85) notation (XML 92) (XML 117) conditional section (XML 116) parameter entity (XML106) (XML 113) DOCTYPE (XML71) parsed entity (XML 104) document type declaration (XML71) public identifier (XML 72) element declaration (XML66) sequence (XML 67) element type declaration (XML66) system identifier (XML 71) enumerated type (XML 85) tokenized type (XML 92) external entity (XML106) token (XML 92) external subset (XML 71) unparsed entity (XML106) formal public identifier (XML 72) general entity (XML 104) ID token (XML 92) ID token type (XML 85) IDREF token (XML 93) IDREF token type (XML 85) internal entity (XML 104) internal subset (XML 71)
  • 17. New Perspectives on XML Comprehensive, 3rd Edition, Instructors Manual 14 of 14 © 2015 Cengage Learning Top of Document
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