Computer Engineering / Bilgisayar Mühendisliği

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Institution Author: search.filters.institutionAuthor.Demirörs, OnurSubject: search.filters.subject.Functional Size Measurement

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  • Conference Object
    Citation - WoS: 15
    Citation - Scopus: 20
    Measureability of Functional Size in Agile Software Projects: Multiple Case Studies With Cosmic Fsm
    (IEEE, 2019) Hacaloğlu, Tuna; Demirörs, Onur
    Functional size measurement (FSM) has been used in software engineering for decades as a main driver for estimation and significant input for other various project management activities throughout the project life span. To apply FSM accurately at the early stages of software development process, especially for estimation purposes, functional user requirements need to be available in detail as required by the adopted FSM method. However, in agile software development, requirement specifications, in general, are kept minimal. For this reason, the adjustment of the requirements to the necessary granularity level has been articulated as one of the barriers preventing the diffusion of FSM practices among agile teams. In this paper, we take a closer look at this problem in order to investigate the usability of FSM and to reveal FSM related challenges empirically through case studies on real agile projects from different software organizations. This study also provides a snapshot of agile organizations in terms of requirement specification and estimation related practices. © 2019 IEEE.
  • Conference Object
    Citation - WoS: 3
    Citation - Scopus: 4
    Evaluating Software Security Change Requests: a Cosmic-Based Quantification Approach
    (Institute of Electrical and Electronics Engineers, 2019) Haoues, Mariem; Sellami, Asma; Ben-Abdallah, Hanene; Demirörs, Onur
    Software project scope defines functional and non-functional requirements. These requirements may change to satisfy the customers' needs. However, the control of scope creep represents one of the success keys in software project management. Changes in non-functional requirements affect the ISO/IEC 25010 quality characteristics such as security, portability, etc. Furthermore, some of these quality characteristics may evolve throughout the software life cycle into functional requirements. In this paper, we explore the use of COSMIC method-ISO/IEC 19761 to quantify and evaluate security change requests. Measuring the functional size of security change requests allows stakeholders to make appropriate decisions about whether to accept, defer, or deny the change. © 2019 IEEE.