SYSTEMATIC CONSTRUCTION OF i* STRATEGIC DEPENDENCY MODELS FOR SOCIO-TECHNICAL SYSTEMS

Computer Standards & Interfaces

Perini

et al. 2011

Self Cite

Goal-oriented and agent-oriented modelling provides an effective approach to the understanding of distributed information systems that need to operate in open, heterogeneous and evolving environments. Frameworks, firstly introduced more than ten years ago, have been extended along language variants, analysis methods and CASE tools, posing language semantics and tool interoperability issues. Among them, the i* framework is one the most widespread. We focus on i*-based modelling languages and tools and on the problem of supporting model exchange between them. In this paper, we introduce the i* interoperability problem and derive an XML interchange format, called iStarML, as a practical solution to this problem. We first discuss the main requirements for its definition, then we characterise the core concepts of i* and we detail the tags and options of the interchange format. We complete the presentation of iStarML showing some possible applications. Finally, a survey on the i* community perception about iStarML is included for assessment purposes.

Section: Discussionmentioning

confidence: 99%

Towards interoperability of i* models using iStarML

Cares

Computer Standards & Interfaces

Perini

et al. 2011

Self Cite

“…In [22] the RiSD methodology is proposed for the modelling of Strategic Dependency (SD) i* diagrams. It is organized into several steps, and intents to be a highly prescriptive procedure.…”

Section: Challenge 2: Providing Methodologies For I* Modellingmentioning

confidence: 99%

“…2. Decision trees for determining the type of intentional element as defined in [22] Grau et al [32] propose the PRiM method framed in the business process reengineering problem. Detailed Interaction Scripts describe the current behaviour of the system in a scenario-like style.…”

Section: Challenge 2: Providing Methodologies For I* Modellingmentioning

confidence: 99%

Fostering the Adoption of i * by Practitioners: Some Challenges and Research Directions

Intentional Perspectives on Information Systems Engineering

2010

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The i* framework is a widespread formalism in the software engineering discipline that allows expressing intentionality of system actors. From the time it was issued, in the mid-nineties, a growing research community has adopted it either in its standard form or formulating variations in order to adapt it to some particular purpose. New methods, techniques and tools have made evolve the framework in a way that it may be currently considered quite mature from the scientific perspective. However, the i* framework has not been transferred to practitioners at the same extent yet: industrial experiences using i* are not many and have been mainly conducted by i* experts that are part of that very research community. Therefore, it may be argued that some steps are needed for boosting the adoption of i* by practitioners. In this chapter, we identify some scientific challenges whose overcoming could represent a step towards this goal. For each challenge, we present the problem that is addressed, its current state of the art and some envisaged lines of research.

“…As a modelling decision and for clarity purposes, we provide the conditions that each particular type of link may impose (e.g., Covers is a many-to-many association from position Actors to role Actors) as OCL constraints instead of graphically (although we show the resulting dependencies to make evident this relationship). -For illustration of dependum links, and considering the goal of this paper, we have added a class for the Support dependum link as introduced in [ 13]. A dependum d1 supports another dependum d2 when d1 has been introduced in a later development stage than d2 in a way that d1 provides details about the form that d2 has.…”

Section: The I* Metamodelmentioning

confidence: 99%

“…5, (a)). Furthermore, for methodological reasons (see [ 13]) we allow actors to include a primary objective in the form of an intentional element inside their boundaries. This way, the SD diagram may declare the overall intention of its enclosed actors.…”

Section: Sd Modulesmentioning

confidence: 99%

Incorporating Modules into the i* Framework

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

2010

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Abstract. When building large-scale goal-oriented models using the i* framework, the problem of scalability arises. One of the most important causes for this problem is the lack of modularity constructs in the language: just the concept of actor boundary allows grouping related model elements. In this paper, we present an approach that incorporates modules into the i* framework with the purpose of ameliorating the scalability problem. We explore the different types of modules that may be conceived in the framework, define them in terms of an i* metamodel, and introduce different model operators that support their application.