  This paper introduces a case study that involves data leakage in a bank
applying the so-called Thinging Machine (TM) model. The aim is twofold: (1)
Presenting a systematic conceptual framework for the leakage problem that
provides a foundation for the description and design of a data leakage system.
(2) The aim in (1) is developed in the context of experimentation with the TM
as a new methodology in modeling. The TM model is based on slicing the domain
of interest (a part of the world) to reveal data leakage. The bank case study
concentrates on leakage during internal operations of the bank. The leakage
spots are exposed through surveying data territory throughout the bank. All
streams of information flow are identified, thus points of possible leakage can
be traced with appropriate evidence. The modeling of flow may uncover possible
hidden points of leakage and provide a base for a comprehensive information
flow policy. We conclude that a TM based on the Heideggerian notion of thinging
can serve as a foundation for early stages of software development and as an
alternative approach to the dominant object-orientation paradigm.
