Self-describing artifacts and application abstractions

• US 7,451,435 B2
• Filed: 12/07/2004
• Issued: 11/11/2008
• Est. Priority Date: 12/07/2004
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Hunt, Galen C., Larus, James R., DeTreville, John D., Grieskamp, Wolfgang, Roeder, Thomas, Levi, Steven P., Fahndrich, Manuel, Zorn, Benjamin
• Primary Examiner(s): Zhen; Wei Y.
• Assistant Examiner(s): Brophy; Matthew J
• Application Number:
  US11/007,808
• Publication Number:
  US 20060123412A1
• Time in Patent Office: 1,435 Days
• Field of Search: 717/117, 717120-126, 717174-178
• US Class Current: 717/120
• CPC Class Codes: G06F 8/61 Installation

Abstract

Described herein is at least one implementation employing multiple self-describing software artifacts persisted on one or more computer-storage media of a software-based computer. In this implementation, each artifact is representative of at least part of the software components (e.g., load modules, processes, applications, and operating system components) of the computing system and each artifact is described by at least one associated “manifest,” which include metadata declarative descriptions of the associated artifact.

Claims

1. A computing system comprising:

a processor configured to execute processor-executable instructions;

a memory coupled to the processor; and

a storage sub-system coupled to the processor and configured to persistently save multiple self-describing software artifacts, wherein each software artifact comprises an offline manifestation of an executable entity, wherein each executable entity is one of;

a process, an application, or a component of an operating system, the artifacts being representative of software components of the computing system;

wherein each of the multiple self-describing software artifacts has an associated persistently saved manifest;

wherein each manifest comprises a metadata declarative description of the manifest'"'"'s software artifact;

wherein each manifest comprises a metadata declarative description of the associated executable entity,

in the event that multiple manifestations of a particular executable entity exist, a separate manifest is associated with each manifestation of the particular executable entity;

wherein each manifest exists in one of two forms;

in an event that manifests are of a static manifest form the static manifests are stored in association with software artifacts; and

in an event that manifests are of a dynamic manifest format the dynamic manifests are employed during runtime of each of their associated executable entities, such that the dynamic manifests include static metadata which is available at runtime and dynamic metadata which is constructed at runtime to connect a plurality of runtime system elements.

2. A system as recited in claim 1, wherein each of the multiple self-describing software artifacts has an associated persistently saved manifest comprising primarily declarative descriptions of the manifest'"'"'s software artifact.

3. A system as recited in claim 1, wherein each of the multiple self-describing software artifacts has all associated persistently saved manifest comprising completely declarative descriptions of the manifest'"'"'s software artifact.

4. A system as recited in claim 1, wherein the software components of the computing system comprise operating system elements and applications.

5. A system as recited in claim 1, wherein the software components of the computing system comprise operating system elements and applications, the elements and applications being installed on the computing system and configured for execution on the processor.

6. A system as recited in claim 1, wherein a persistently saved system manifest comprises declarative descriptions of the multiple self-describing software artifacts.

7. A system as recited in claim 1 further comprising an artifact manager configured to manage the self-describing software artifacts.

8. A system as recited in claim 1 further comprising an artifact manager configured to update the self-describing software artifacts.

9. A system as recited in claim 1 further comprising an artifact manager configured to optimize use of self-describing software artifacts for generating a set of processor-executable instructions.

10. A system as recited in claim 1 further comprising an execution gateway configured to allow execution of only processor-executable instructions associated with a self-describing artifact only if conditions for allowed execution described by the associated self-describing artifact exist.

11. A system as recited in claim 1 further comprising an execution gateway configured to limit execution of functional components of the self-describing software artifacts when a manifest associated with the functional components of the self-describing software artifacts includes a conditional declarative description that the execution gateway determines is met.

12. A system as recited in claim 1 further comprising an execution gateway configured to audit a self-describing artifact to determine if the artifact differs from the artifact'"'"'s own self-description.

13. A system as recited in claim 1 further comprising a system verifier configured to perform acts comprising:

examining the self-describing artifacts to gather information about the artifacts;

performing a verification of the self-describing artifacts;

reporting results of the verification.

14. A system as recited in claim 1 further comprising an operating system configured to perform acts comprising facilitating creation of an instance of an application, wherein the source components of the application are derived from one or more of the self-describing artifacts.

15. A system as recited in claim 1 further comprising an optimization tool configured to perform acts comprising:

examining the self-describing artifacts to gather information about the artifacts;

optimizing the components of self-describing artifacts;

persistently saving the self-describing artifacts with optimized components.

16. A system as recited in claim 1 further comprising an error detection tool configured to perform acts comprising:

examining the self-describing artifacts to gather information about the artifacts;

analyzing the self-describing artifacts to detect potential errors;

reporting results of the analysis.

17. One or more computer storage media having processor-executable instructions thereon that, when executed by a processor, performs acts comprising:

facilitating persistent saving of multiple self-describing software artifacts on a computing system,

wherein each software artifact comprises an offline manifestation of an executable entity and is representative of functional operating system components or functional applications, such components and applications being installed on the computing system;

facilitating persistent saving of multiple manifests respectively associated with the multiple self-describing software artifacts, wherein in an event that multiple manifestations of a particular executable entity exist, a separate manifest is associated with each manifestation of the particular executable entity, the manifests comprising metadata declarative descriptions of;

the multiple self-describing software artifacts and an associated executable entity wherein each manifest exists in either a static manifest form or a dynamic manifest form such that;

in an event that a manifest is of the static manifest form storing the static manifest in association with a self-describing software artifact; and

in an event that a manifest is of the dynamic manifest form employing the dynamic manifest during runtime of an associated executable entity, such that the dynamic manifest comprises dynamic metadata which is constructed at runtime to connect a plurality of runtime system elements.

18. One or more media as recited in claim 17 further comprising examining the manifests to discover information about the multiple self-describing software artifacts.

19. One or more computer storage media having processor-executable instructions that, when executed by a processor, perform acts comprising:

examining multiple self-describing software artifacts and manifests associated with the multiple self-describing software artifacts persistently saved on a computing system to gather information about the self-describing software artifacts and the manifests wherein;

each software artifact comprises an offline manifestation of an executable entity;

each executable entity is one of;

a process, an application, or a component of an operating system,

the manifests comprise metadata declarative descriptions of the multiple self-describing software artifacts and associated executable entities;

in an event that multiple manifestations of a particular executable entity exist, a separate manifest is associated with each manifestation of the particular executable entity;

each manifest exists in either a static manifest form or a dynamic manifest form such that;

a manifest in the static manifest form is stored in association with a software artifact; and

a manifest in the dynamic manifest form is employed during runtime of each associated executable entity,

such that the manifest in the dynamic manifest form comprises dynamic metadata which is constructed at runtime to connect a plurality of runtime system elements; and

;

performing verification on the multiple self-describing software artifacts; and

reporting results of the verification.

20. One or more media as recited in claim 19, wherein the acts further comprise verifying that dependencies of software components installed on a computer are met, the software components being composed of one or more self-describing software artifacts.

21. One or more media as recited in claim 19, wherein the acts further comprise performing act comprises-verifying that processor-executable instructions represented by one or more self-describing artifacts remains unaltered.

22. One or more media as recited in claim 19, wherein the acts further comprise verifying that an application

is correctly installed in a computer, the application being composed of one or more self-describing software artifacts.

23. One or more media as recited in claim 19, wherein the acts further comprise verifying that a known faulty or malicious program is not installed on a computer.

24. One or more media as recited in claim 19, wherein the-acts further comprise verifying that an application and all of its constituent components and dependencies are accessible from a computer before the application is installed on the computer, the application being composed of one or more self-describing software artifacts.

25. One or more media as recited in claim 19, wherein the acts further comprise verifying that an application is installable on the computer before loading components of the application onto the computer.

26. One or more media as recited in claim 19, wherein the acts further comprise verifying that installation of a new application will not conflict with existing applications, the applications being composed of one or more self-describing software artifacts.

27. One or more media as recited in claim 19, wherein the acts further comprise verifying that an application can be removed without breaking dependencies from other applications, the applications being composed of one or more self-describing software artifacts.

28. One or more media as recited in claim 19, wherein the acts further comprise verifying that an application conforms to a predefined local policy, the application being composed of one or more self-describing software artifacts.

29. One or more media as recited in claim 19, wherein one or more self-describing artifacts compose an application, has-having process-executable instructions that may be executed on a computer when the application is loaded into a memory of a computer, the acts further comprising optimizing the process-executable instructions of the application to improve the performance of the instructions of the application.

30. One or more media as recited in claim 19, wherein one or more self-describing artifacts compose an application, having process-executable instructions that may be executed on a computer when the application is loaded into a memory of a computer, the acts further comprising analyzing the process-executable instructions of the application to detect potential errors in execution behavior or operation of the instructions of the application.

31. A data structure embodied on one or more computer storage media, the data structure comprising:

multiple self-describing software artifacts comprising an offline manifestation of an executable entity and processor-executable instructions representing operating system components or applications, such components and applications being installed on a computing system;

manifests associated with the multiple self-describing software artifacts, the manifests being comprising metadata declarative descriptions of the multiple self-describing software artifacts and metadata declarative descriptions of associated executable entities, wherein in an event that multiple manifestations of a particular executable entity exist, a separate manifest is associated with each manifestation of the particular executable entity, and each manifest exists in one of a plurality of forms, the plurality of forms comprising;

a static manifest form stored in association with software artifacts and a dynamic manifest form employed during runtime of each associated executable entity, such that the dynamic manifests comprise dynamic metadata which is constructed at runtime to collect a plurality of runtime system elements.

32. One or more media as recited in claim 31, wherein one of the manifests is a system manifest comprising declarative descriptions of the multiple self-describing software artifacts.

33. One or more computer storage media having processor-executable instructions that, when executed by a processor, perform acts comprising:

obtaining a copy of an offline “

system image”

of a software-based computer, the system image representing the content and configuration of software components installed on the computer, wherein the installed software components are represented on the system image as self-describing software artifacts wherein each software artifact comprises an offline manifestation of an executable entity, each executable entity is one of;

a process, an application, or a component of an operating system.

and each self-describing software artifact has an associated persistently saved manifest comprising a metadata declarative description of the manifest'"'"'s software artifact and a metadata declarative description of an associated executable entity, such that in an event that multiple manifestations of a particular executable entity exist, a separate manifest is associated with each manifestation of the particular executable entity; and

each manifest exists in either a static manifest form or a dynamic manifest form;

in an event that a first manifest exists in the static manifest form, storage the first manifest in association with software artifacts; and

,

in an event that a second manifest exists in the dynamic manifest form, employing the second manifest during runtime of each associated executable entities, such that the second manifest comprises dynamic metadata which is constructed at runtime to collect a plurality of runtime system elements;

analyzing the self-describing software artifacts of the offline system image;

reporting results of the analyzing act.

34. One or more computer storage media as recited in claim 33 further comprising identifying, based upon the analyzing act, the software components in the offline system image.

35. One or more computer storage media as recited in claim 33 further comprising:

identifying based upon the analyzing act, the software components in the offline system image;

determining whether the identified software components in the offline system image are functional.

36. One or more computer storage media as recited in claim 33 further comprising:

identifying based upon the analyzing act, the software components in the offline system image;

determining whether the identified software components in the offline system image contain defects.

37. One or more computer storage media as recited in claim 33, wherein each of the self-describing software artifacts has an associated persistently saved manifest comprising declarative descriptions of the manifest'"'"'s software artifact.

38. One or more computer storage media as recited in claim 33, wherein each of the self-describing software artifacts has an associated persistently saved manifest comprising primarily declarative descriptions of the manifest'"'"'s software artifact.

39. One or more computer storage media as recited in claim 33, wherein each of the self-describing software artifacts has an associated persistently saved manifest comprising completely declarative descriptions of the manifest'"'"'s software artifact.

40. One or more computer storage media as recited in claim 33, wherein the software components of the computing system comprise operating system elements and applications.

41. One or more computer storage media as recited in claim 33, wherein the offline system image comprises a persistently saved system manifest having declarative descriptions of the self-describing software artifacts.