The Оbject-Componet Development (ОCD) is a variety of the compositional programmings, where a role of elements of assembling is warmed by objects, interfaces and components. For developing application systems, the theory of design of subject domain based on Frege object theory is developed, together with the presentation of their functions by methods and interfaces with formal annotations for saving them in libraries. Mathematical vehicle ОCDs are models, methods, algebra of operations of objective analysis and their configuring with the use of the component algebra of running, evolution and transformation of data types that are passed between objects through interfaces. Row of the theoretical and applied aspects ОCD was realized in the instrumental-technological complex (ІТC) as CASE-instruments of web-site http://sestudy.edu-ua.net. With their help the students can study, create, model, certify and accumulate or configure the objects and components into repository of ITC, and also assemble together from them in more complex applied systems.

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Complementary limitations of both Software Product Lines industrial technologies and Lavrischeva – Grishenrko object-component method concerning changeable software development are elicited such as the lack of formalisms for program assets building and ill predictability of this build features. To cope with the limitations universal Model of Software Family Variant Features is proposed expanding its tradi-tional feature model for basic development artifacts. For assets being considered as reusable Components final Changeable Software Object-Component Model is elaborated including the universal model above being adjusted as Software Variability Object-Component Model. The Algebra is depicted for the operations of both the Components configuring and data types transforming over their interaction within changeable software system. These operations are proposed to incorporate into the target process for Changeable Software Family proactive and informed Variability management being represented with its technological chart. The process proposed composes the functions for variability Planning, Implementing and Control as well as Family model/consist Evolving up to the Control results. The functions listed are performed within common information environment structured accordingly to Variant Features Model or its object-component adjustment. Trial software tool for configuring Components in the above process is probed. The usage is depicted of both the framework proposed and this tool over technological lines being implemented in Software Systems Institute of NAS of Ukraine Instrumental-technological complex for changeable software configuring from the components.