By Genebeck HAHN, Taekyoung KWON, Jooseok SONG
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Additional resources for A Comparative Analysis of Extensible Authentication Protocols
4 The threat of new products or services Using IT for Competitive Advantage 13 So now we have three of the ﬁve forces: the competitive rivalry, the threat of new entrants, and the threat from substitute products or services. The remaining two are the bargaining power of suppliers and the bargaining power of customers. If there are many suppliers then organisations have more choice and more opportunity to negotiate good supply arrangements. Conversely, if supply is concentrated with a few suppliers then the greater power they have.
Nor should we get hung up about ‘professions’; they are described in the Oxford dictionary as a ‘vocation or calling, especially one that involves some branch of advanced learning or science’. So professionalism can be described as behaviour that meets the currently acceptable standards of the profession – whatever they are! As an analyst you’ll ﬁnd yourself – or you should ﬁnd yourself – constrained by issues of morality, ethics and professionalism. Folk hero Dilbert often ﬁnds himself in this situation where he is faced with juggling a variety of constraints that impact his work.
The arrows on the diagram represent the ﬂow of data. 2. The Level 2 DFDs are enclosed by a boundary box. This separates the processes from the interfaces to the external entities and the logical data stores. System Telecom Board Organisation Chart 30 The Context for Analysis and Design System Telecom Level 1 DFD – Required System Case Study: System Telecom 31 Level 2 DFD – Maintain Customers The DFD deﬁnes the processing that the system will carry out but not how the system will work. There is no sequence implied in the numbers allocated to the processes or the datastores; they are merely labels.
A Comparative Analysis of Extensible Authentication Protocols by Genebeck HAHN, Taekyoung KWON, Jooseok SONG