Electronic Data Systems Corporation

Hewlett-packard Development Company, L.p.

Electric Data Systems Corporation

Ent. Services Development Corporation LP

Fred A Cummins

Waqar Sadiq

William Earl Swift, Ii

Sharad Singhal

Siani Lynne Pearson

Marc Brandt

Steven H Marney

In one implementation, encrypted data and a virtual machine are stored together as a virtual machine-data image, wherein the virtual machine is configured to EXERT management control over the data based on policies set by an owner of the data. In another implementation, metadata defining or tagging policies for usage of data is associated with the data. Control capabilities of service providers are mapped to the policies, wherein those service provider environments that best satisfy the controls mapped to the policies are identified.

Data management using a virtual machine-data image

A method, and corresponding hardware and software implementations, including receiving a client login from a client user; loading contextual information including at least one contextual parameter; determining a business process according to the contextual information; and executing the business process.

System, method, and computer program product for context-based business process management

A docking station for a mini personal computer. The docking station formed of the shell of a laptop computer at which a user keyboard and a display screen are supported at the docking station. Additional elements, such as a computer hard drive or computer mass storage device are also supported at the docking station. When the mini personal computer is received at a docking port of the docking station, the processor of the mini personal computer is able to make use of the elements supported at the docking station.

Docking station, and associated methodology, for a mini personal computer

A method for providing document-level security for electronic documents comprises identifying a plurality of roles for the electronic document, the plurality of roles comprising at least one role associated with a first participant ID of a first client. The roles are dynamically stored in the electronic document. One or more participant IDs are dynamically stored in the electronic document, including at least the first participant ID, wherein each participant ID is associated with at least one role. A second participant ID of a second client is determined and the second client's ability to access the electronic document is automatically determined based, at least in part, on the second participant ID and the stored roles and participant IDs.

System and method for electronic document security

The security risk associated with a computer system may be quantified by identifying a computer system, identifying a risk associated with the computer system, the risk relating to an event that may interrupt a normal operating mode of the computer system, determining a likelihood that the event associated with the risk will occur, determining a cost associated with the event occurring on the computer system, and quantifying the risk into an impact value by using the likelihood and the cost.

Computer model of security risks

The invention comprises a method and system for maintaining the integrity of shared objects based upon instance variable locking. In accordance with the method of the invention, a locking tag is attached to an instance variable, indicating that the instance variable was read by a first process. Reads of the instance variable by a second process are allowed while the first locking tag is present. A second locking tag is attached to the instance variable, indicating that the instance variable was read by the second process.

Method and system for maintaining consistency of shared objects based upon instance variable locking

One aspect of the invention is a distributed object system comprising a plurality of resources and a plurality of transactions where at least some of the plurality of transactions make use of at least one of the plurality of resources. A transaction service runs on at least one computer and is operable to interact with the resources and transactions. The transaction service comprises a deadlock detector operable to determine whether deadlock will occur if one of the plurality of transactions waits to use a resource currently being used by another of the plurality of transactions. A roll back method is operable to roll back a particular transaction if the deadlock detector determines that deadlock will occur if that particular transaction waits to use a resource currently being used by another of the plurality of transactions.

Distributed object system with deadlock prevention

One aspect of the invention is a method for processing a query. The method comprises receiving a query requesting at least one specific attribute of selected ones of a plurality of objects satisfying a query criteria. The query is directed to a database containing state data for the plurality of objects. A data structure is generated in response to the query, the data structure comprising, for each object satisfying the query criteria, each specific attribute requested by the query and the identifier of the object, even if the identifier of the object was not requested as a specific attribute in the query.

Method and system for processing a query

One aspect of the invention is a method for maintaining persistence in a shared object system. A request is received to update a persistent record of a shared object's state wherein the persistent record of the shared object's state is contained in a database. At least one SQL statement is dynamically generated in response to the request. That statement is generated using a data structure comprising data reflecting at least a portion of the state of the shared object and a map associating attributes to the shared object with the location of those attributes in the database. An SQL statement is then sent to the database.

Method and system for maintaining persistence in a shared object system

One aspect of the invention is a method for updating a database providing persistent storage for a plurality of objects each comprising methods and instance variables, wherein a persistent record of each of the plurality of objects will experience a change in the context of a transaction if the transaction is allowed to commit. The method comprises sending a first prepare message to each of the plurality of objects, the plurality of objects sending their state to the database in response to the first prepare messages. A second prepare message is sent to the database if a prepared indicator was received in response to each of the first prepare messages. A commit message is sent to each of the plurality of objects and to the database if a prepared indicator was received in response to each of the first prepare messages and if a prepared indicator was received in response to the second prepare message.

Method and system for maintaining the integrity of a database providing

One aspect of the invention is a method for managing redundant objects in a distributed object system. A transaction service runs on a computer. At least two copies of the instance variables of a distributed object are maintained in a separate database. The distributed object (46) has a polymorphism of an interface object instantiation method. At least two copies of an interface object (48) are instantiated wherein each interface object (48) is associated with one of the copies of the instance variables of the distributed object (46). The interface objects (48) are instantiated using the polymorphism. A list of interface objects (48) is maintained with the distributed object (46). Each copy of the instance variables of the distributed object (46) are modified by traversing the list of interface objects (48) and sending a message with modification parameters to each interface object (48) on the list.

Method and system for managing redundant objects in a distributed object

One aspect of the invention is a method of generating object-oriented code. An object model is captured for at least one object using a computer. Code interpretable by a compiler is then generated based upon the object model. The code comprises a base object class (46) and a custom object class (50) where the base object class (46) comprises a base object header file and base object implementation file while the custom object class (50) comprises a custom object header file and custom object implementation file. The base object class (46) inherits from a framework object class (44) while the custom object class (50) inherits from the base object class (46). In response to a change in the object model, a new base object header file, base object implementation file, and custom object header file are generated while preserving at least some code in the base object implementation file.

Object-oriented code generation system and method

The invention comprises a system and method for maintaining the integrity of a plurality of objects each comprising methods and instance variables. The method is used to maintain the integrity of a plurality of objects wherein each of the plurality of objects will experience a change in at least one of its instance variables in response to a transaction if the transaction is allowed to commit. The method comprises sending a validate message to ones of the plurality of objects using a transaction service running on a computer. A prepare message is sent to each of the plurality of objects if a valid indicator was received in response to each validate message. A commit message is sent to each of the plurality of objects if a valid indicator was received in response to each of the validate messages and a prepared indicator was received in response to each of the prepare messages.

Method and system for maintaining the integrity of objects

An object-oriented programming language includes support for encapsulation of aspects and for change notification for aspect values. These features are then used to implement various change notification mechanisms. In general, a notification request for change in an aspect value in a target object is forwarded to any object (which may be the same object or another object) having aspects from which the aspect value is computed, derived, or replicated.

Notification of aspect value change in object-oriented programming

The invention comprises a method and system for achieving delegation in a class-based object oriented language. In accordance with the method of the invention, a message is received with a first object, the message including a first target parameter. The first object then generates a 'self' message in response to the first message and sends the 'self' message to the object identified by the first target parameter.

Growing community of inventors

Farmington Hills, MI, United States of America

Fred A Cummins