On the Concept of Discovery Power of Enterprise Modeling Languages and its Relation to their Expressive Power
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1. The document introduces the concept of discovery power for enterprise modeling languages, which is the degree of help provided by a modeling language's structure to expand or fill gaps in a partly built model. 2. It aims to explain why some modeling languages are more popular than others for novices, despite marketing, by connecting discovery power to a language's ability to help novices build models. 3. Several enterprise modeling languages are analyzed in terms of their expressive and discovery powers to represent concepts in different ways that provide varying levels of assistance to users.
On the Concept of Discovery Power of Enterprise Modeling Languages and its Relation to their Expressive Power
- 1. Ilia Bider DSV SU/CS UT and Erik Perjons DSV SU On the Concept of Discovery Power of Enterprise Modeling Languages and its Relation to their Expressive 1 13th Enterprise Design and Engineering Working Conference – EDEWC Vienna, Austria, 28 Nov 2023
- 2. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 1. Main goal – introduce a new concept Discovery power for enterprise modeling languages 2. Rational (Why) – it feels that something is missing when a decision taken which modeling language to use in the project. 3. Rational (Why) – to understand why some modeling languages are more popular than others, especially for novices (disregarding marketing hype) 4. Secondary goal – connect the new concept to the known concept of Expressive power of enterprise modeling languages 2 The Goal & Rational
- 3. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 1. Discovery power = “Degree of help provided by the structure of enterprise modeling language to expand a partly built model or fill gaps in it”. 2. Expressive power (absolute via negation) = “If some part of reality cannot be expressed in a given modeling language, we say that the given language does not have enough expressive power to depict this part of reality.” 3 Definitions
- 4. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 4 Context of Building Model (OODA)
- 5. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 1. If the object to be depicted is well known and modeling consist of depicting the existing information using a given enterprise language, then the discovery power is not so important, but the absolute expressive power is. 2. If the modeling team has experience of modeling a similar organization as a given one, then the discovery power is not so important. 3. If the type of organization is new for modeling team (or if a team consists of novices), the discovery power is important, as it can provide help in finding elements to put in the model. 4. Discovery power is not the only kind of help the modeler can get, e.g. modeling patterns. However, in a new/emergent domain, the discovery power might bequite important. 5 When do we need Discovery Power?
- 6. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 6 Expressiveness VS Discovery ArhiMate IDEF0 FEM –Fractal Enterprise Model Example was taken from Wierda, G.: Mastering ArchiMate Edition 3.1. P&A (2022) and adjusted for other techniques
- 7. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 7 Expressiveness VS Discovery ArhiMate IDEF0 FEM
- 8. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU Expressive power (relative) = “If some part of reality is expressed by specific means in one language, and by more generic means in another, then the first language has a greater expressive power than the second one in respect to this part of reality.” A good way to discover the difference is to compare anonymized models 8 Another Definitions for Expressive Power
- 9. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU The discovery power of a language lies in specific means to express some ideas. The more specifics these means are the more discovery power the language has in respect to the ideas expressed by these means. • Some specific means are common for many languages – Specialization relation • Other means are different for different languages Go back to anonymous models and discuss 9 Connection between Expressive and Discovery Power
- 10. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 10 Formal Rules (ArchiMate)
- 11. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 11 Formal Rules (IDEF0)
- 12. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 12 Formal Rules (FEM)
- 13. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU • For experience modeler – yes • For novice – No, need to complement each rule on how to find the missing elements in the available sources of information, what questions to ask, what document to look for, etc. Formal rules could be used to partly automate creating a model 13 Is Having Formal Rules Enough?
- 14. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 1. Rational (Why) – it feels that something is missing when a decision taken which modeling language to use in the project. The language is chosen based on Expressive power, without consideration whether the Discovery power is needed 2. Rational (Why) – to understand why some modeling languages are more popular than others, especially for novices Workflow languages chosen because they have great Discovery power 14 Back to Our Rational
- 15. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 1. Defining formal discovery rules for ArchiMate, IDEF0 and FEM –short terms 2. Creating detail instructions for looking for information in various sources – long terms Invitation: anybody who want to join the direction – contact us 15 Plans for the future
- 16. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU 1. Can an Enterprise Model Help in Mapping Capabilities? FACETE 2023 29/11 – Session 1 (9:00- 10:30). Discovery power is used. 2. FEM Toolkit Version 1.1 and FEM Viewer – What is New? Tools & Demos 29/11 – Session 3 (16:00- 17:30). More on FEM Everybody is Welcome 16 Related presentations
- 17. 12/4/2023 Ilia Bider DSV SU/CS UT, Erik Perjons DSV SU Contact: ilia@dsv.su.se perjons@dsv.su.se Q & A Thank you for your time and patience Questions and comments