Abstract: A method and system provide the ability to manage objects across multiple independent projects. A graphically descriptive design representation of a master project for an engineering system architecture model is generated and displayed. The model consists of the multiple independent projects with each project owning a set of data that is arranged as a hierarchy of nodes that each represents an object of the set of data. Links between nodes define a dependency relationship between the objects represented. A request to reference data is received. A determination is made regarding whether the request is consistent with the master project representation. The request is allowed or rejected depending on the determination.

Abstract: Methods of providing multi-key encryption of a data set are provided. Operations include providing, to a first data user of the data set, a first user specific data point, providing, to a second data user of the data set, a second user specific data point, and providing, to the first data user and the second data user, at least two shared data points that, when used with either of the first user specific data point or the second user specific data point, define a component polynomial that corresponds to a component that is defined in the data set. Operations further include providing, to the first data user, a first key share point that, in combination with the first user specific data point, defines a first data user polynomial that identifies a first encryption key that is on the first data user polynomial.

Abstract: Methods of providing multi-key encryption of a data set are provided. Operations include providing, to a first data user of the data set, a first user specific data point, providing, to a second data user of the data set, a second user specific data point, and providing, to the first data user and the second data user, at least two shared data points that, when used with either of the first user specific data point or the second user specific data point, define a component polynomial that corresponds to a component that is defined in the data set. Operations further include providing, to the first data user, a first key share point that, in combination with the first user specific data point, defines a first data user polynomial that identifies a first encryption key that is on the first data user polynomial.

Abstract: A method and system provide the ability to manage objects across multiple independent projects. A graphically descriptive design representation of a master project for an engineering system architecture model is generated and displayed. The model consists of the multiple independent projects with each project owning a set of data that is arranged as a hierarchy of nodes that each represents an object of the set of data. Links between nodes define a dependency relationship between the objects represented. A request to reference data is received. A determination is made regarding whether the request is consistent with the master project representation. The request is allowed or rejected depending on the determination.