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The UNIK architecture

UNIK architecture is depicted in the following picture that shows interconnections among different components, using the following notation:

a white box represents a UNIK running server or an application; if it is contained in another one it means that it is a component created if some conditions hold; otherwise if the component is always on (from boot-strap) then it is depicted with a blue box; instead a yellow box is an external component; each component offers some interfaces, represented by a white rectangle if they are Java interfaces or black rectangle if they are IDL interfaces; the blue links represent the dependency (e.g. the invocation of a method) between a component and an interface of another component; the white cylinders represent a data store (a database, a LDAP server, a file).