Developing the models of patterns in the design of requirements to an information system at the knowledge level

Abstract

Розглянуто задачу розробки математичних моделей патернів проектування вимог до систе-ми. Розроблені моделі дозволяють формалізу-вати представлення вимог до системи на рівні знань. Використання даних моделей дозволяє підвищити ефективність виконання ІТ-проектів створення інформаційних систем за рахунок пов-торного використання елементів, що були розро-блені в попередніх ІТ-проектах Ключові слова: IT-послуга, потреби, функці-ональні вимоги, повторне використання, патерн проектування вимоги, фрейм, кортеж Рассмотрена задача разработки матема-тических моделей паттернов проектирования требований к системе. Разработанные модели позволяют формализовать представления тре-бований к системе на уровне знаний. Применение данных моделей позволяет повысить эффектив-ность выполнения IT-проектов создания инфор-мационных систем за счет повторного использо-вания элементов, разработанных в предыдущих IT-проектах Ключевые слова: IT-услуга, потребности, функ-циональные требования, повторное использо-вание, паттерн проектирования требования, фрейм, кортеж UDC 044.03; 658.11.05.06

Improvement of the method of scenario analysis of functional requirements to an information system

“…The models for representing the functional requirements to IS at the knowledge level were considered in [16] as a subclass of structural patterns in the design of functional requirements. In a general case, this subclass takes the following form:…”

“…Here Pt fr_ str is the model of a structural pattern for a frame design; At n is the tuple of attributes that describe the name of a frame; At el_ fr is the tuple of attributes that describe an element of a frame (slot, interface, method); At el_ fr_t is the tuple of attributes describing the type of a frame element; at n is the attribute that identifies the name of the frame; at el_ fr is the attribute that identifies the frame's element; at el_ fr_t is the attribute that identifies the type of an element in a frame; Pt if is the model of a structural pattern in the design of a frame's interface; At g is the tuple of attributes describing the globally unique identifier of the interface of the frame; At el_if is the tuple of attributes that describe an element in the interface of a frame (slot, method); At el_if _t is the tuple of attributes that describes the type of an element in the frame's interface; at g is the attribute that identifies the globally unique identifier of a frame's interface; at el_if is the attribute that identifies an element in the interface of a frame; at el_if _t is the attribute that identifies the type of an element in a frame's interface; Pt fr_rel is the model of a structural pattern in the design of relationships between nodes in a network of frames; At fr_rel_n is the tuple of attributes describing the name of the relationship; At el_ fr_rel is the tuple of attributes describing the description element of relation; At el_ fr_rel_t is the tuple of attributes describing the type of an element in the description of relation; at fr_rel_n is the attribute that identifies the name of a relationship; at el_ fr_rel_t is the attribute that identifies the type of an element in the description of relation; at el_ fr_rel_t is the attribute that identifies the type of an element in the description of relation; Ptnet_ fr is the model of a structural pattern in the design of a network of frames; 1 n at is the attribute that identifies the name of the first frame that can participate in forming a relationship (maybe not defined); 2 n at is the attribute that identifies the name of the second frame, which can participate in forming a relationship (maybe not defined) [16].…”

The ADALINE neuron modification for solving the problem on searching for the reusable functions of the information system

“…The main feature of the proposed modification of the mADALINE neuron is the necessity of a formal description of both reusable functions and the presentation of the functional requirement to the IS. Although a large number of studies are carried out in this direction (e. g. [13][14][15]), the problem of formal description of requirements (including on the knowledge level) is still far from being resolved.…”

“…Study of knowledge mining and management for formation of the requirements specification is proposed in [14]. Application of the patterns based on frame networks to represent functional requirements at a knowledge level was suggested in [15].…”

“…pluralities of numerical and symbolic data. The patterns of designing these representations are considered in[15]. However, the ADALINE neuron can process just numeric data.Conversion of representations,…”