Supporting Analysts by Dynamic Extraction and Classification of Requirements-Related Knowledge

© 2019 IEEE. In many software development projects, analysts are required to deal with systems' requirements from unfamiliar domains. Familiarity with the domain is necessary in order to get full leverage from interaction with stakeholders and for extracting relevant information from the existing project documents. Accurate and timely extraction and classification of requirements knowledge support analysts in this challenging scenario. Our approach is to mine real-time interaction records and project documents for the relevant phrasal units about the requirements related topics being discussed during elicitation. We propose to use both generative and discriminating methods. To extract the relevant terms, we leverage the flexibility and power of Weighted Finite State Transducers (WFSTs) in dynamic modelling of natural language processing tasks. We used an extended version of Support Vector Machines (SVMs) with variable-sized feature vectors to efficiently and dynamically extract and classify requirements-related knowledge from the existing documents. To evaluate the performance of our approach intuitively and quantitatively, we used edit distance and precision/recall metrics. We show in three case studies that the snippets extracted by our method are intuitively relevant and reasonably accurate. Furthermore, we found that statistical and linguistic parameters such as smoothing methods, and words contiguity and order features can impact the performance of both extraction and classification tasks

Two sides of the same coin: Software developers' perceptions of task switching and task interruption

EASE'18, June 28-29, 2018, Christchurch, New Zealand © 2018 Association for Computing Machinery. In the constantly evolving world of software development, switching back and forth between tasks has become the norm. While task switching often allows developers to perform tasks effectively and may increase creativity via the flexible pathway, there are also consequences to frequent task-switching. For high-momentum tasks like software development, "flow", the highly productive state of concentration, is paramount. Each switch distracts the developers' flow, requiring them to switch mental state and an additional immersion period to get back into the flow. However, the wasted time due to time fragmentation caused by task switching is largely invisible and unnoticed by developers and managers. We conducted a survey with 141 software developers to investigate their perceptions of differences between task switching and task interruption and to explore whether they perceive task switchings as disruptive as interruptions. We found that practitioners perceive considerable similarities between the disruptiveness of task switching (either planned or unplanned) and random interruptions. The high level of cognitive cost and low performance are the main consequences of task switching articulated by our respondents. Our findings broaden the understanding of flow change among software practitioners in terms of the characteristics and categories of disruptive switches as well as the consequences of interruptions caused by daily meetings

Memorias de la Real Academia de la Historia

Las h. de grab. son xil. y litogr.Signaturizado.Los v. IX al XI en Imprenta de M. Tello y el v. XIII en Est. Tip. de la viuda é hijos de M. Tello.Contiene: Vol. I, 1796 ([4], 6, CLXI, [1], 408, [2] p., [5] h. de grab., [1] h. de grab. pleg.) -- Vol. II, 1796 ([4], 4, 616, [1] p.) -- Vol. III, 1799 (10, 597 p.) -- Vol. IV, 1805 (XXXVIII, [2], 63, VIII, 85, 84, 34, 73 p.) -- Vol. V, 1817 (8, LXXV, 443, [1] p.) -- Vol. VI, 1821 (XCV, [1] en bl., 622, [2] p.) -- Vol. VII, 1832 ([8], XLIV, 578, [2] p., [4] h. de grab.) -- Vol. VIII, 1852 (7, LXIII, 29, 71, 58, 20, 100, 114 p., 69 h. de grab.) -- Vol. IX, 1879 (XXXIV, VIII, 215, 107, 116, 153, [6], 84 p., [5] h. de grab. pleg., [1] h. de mapa pleg., [3] h. de grab.) -- Vol. X, 1885 (28, 853 p.) -- Vol. XI, 1888 (28, 788 p., X, XXI h. de grab., [2] h. de grab.) -- Vol. XIII, 1903 (LVIII, 976 p.)El t. 14 se publicó en 1909 y el t. 12 en 1910Mode of access: Internet