A method, operating model, system, data structure, computer program and computer program product for analyzing and categorizing and exploring or querying unstructured information and for tracking trends and exceptions. Method for analytical processing of unstructured objects in a dimensional space. Method for tracking trends in concepts. Method for tracking exceptions in concepts. Tools and interface for displaying concepts, query results, tracked trends and exceptions.

Access control methods provide multilevel and mandatory access control for a database management system. The access control techniques provide access control at the row level in a relational database table. The database table contains a security label column within which is recorded a security label that is defined within a hierarchical security scheme. A user's security label is encoded with security information concerning the user. When a user requests access to a row, a security mechanism compares the user's security information with the security information in the row. If the user's security dominates the row's security, the user is given access to the row.

Performing a user initiated search query is disclosed and comprises receiving user input comprising description details of at least one desired object, retrieving a plurality of objects from a database sharing one or more of the description details of the user input, constructing a tree data structure based on the description details of the plurality of objects, the tree data structure comprising one or more attributes related to each of the plurality of objects retrieved, displaying visual images associated with the retrieved plurality of objects, the visual images matching at least one of the attributes related to the plurality of objects, and receiving a user selection of one or more of the visual images.

A storage system includes a plurality of vdisks, with each vdisk containing a plurality of storage segments, and each segment providing a specific class of service (CoS) for storage. Each vdisk stores files with data and meta data distributed among its storage segments. A storage system includes a memory having multiple classes of service. The system includes an interface for storing a file as blocks of data associated with a class of service in the memory. The interface chooses the class of service for a block on a block by block basis for storage. A file system for storing a file. A file system for storing includes a plurality of vdisks. A method for storing a file.

A storage system includes a plurality of vdisks, with each vdisk containing a plurality of storage segments, and each segment providing a specific class of service (CoS). Each vdisk stores files with data and meta data distributed among its storage segments. A storage system includes a memory having multiple classes of service. The system includes an interface for storing a file as blocks of data associated with a class of service in the memory. The interface chooses the class of service for a block on a block by block basis.

Methods and Systems for searching a database for objects, comprising: assigning a plurality of attributes to each of a plurality of objects in a collection; assigning each of the attributes to a kind; receiving a search query including at least one attribute specified by user; displaying a list of kinds associated with attributes specified by the user.

An exemplary method of generating a chart matrix comprises outputting a user interface (UI) comprising a row header UI section, a column header UI section, and a grid header UI section in a headers UI section, outputting a chart matrix defined by associating a first data dimension corresponding to a data dimension placed in a first position in the row header with a row edge of the chart matrix, and a second data dimension corresponding to a data dimension placed in a first position in the column header with a column edge of the chart matrix, outputting two or more charts nested within each of two or more cells of the chart matrix, providing a user option to perform a drill operation on a selected member displayed in the chart matrix, and outputting, in response to the user input to perform the drill operation, a modified chart matrix.

A storage system includes a plurality of vdisks, with each vdisk containing a plurality of storage segments, and each segment providing a specific class of service (CoS) for storage. Each vdisk stores files with data and meta data distributed among its storage segments. A storage system includes a memory having multiple classes of service. The system includes an interface for storing a file as blocks of data associated with a class of service in the memory. The interface chooses the class of service for a block on a block by block basis for storage. A file system for storing a file. A file system for storing includes a plurality of vdisks. A method for storing a file.

A storage system includes a plurality of vdisks, with each vdisk containing a plurality of storage segments, and each segment providing a specific class of service (CoS). Each vdisk stores files with data and meta data distributed among its storage segments. A storage system includes a memory having multiple classes of service. The system includes an interface for storing a file as blocks of data associated with a class of service in the memory. The interface chooses the class of service for a block on a block by block basis.

Methods and Systems for searching a database of Objects. Each Object is associated with a plurality of Attributes, each Attribute is associated with a Kind, and each Kind is associated with a plurality of Attributes. Search criteria comprising an Attribute is received. A Nonceattribute is created using the search criteria. A search utilizing the Nonceattribute is inputted. All Objects having the Nonceattribute are identified. All Attributes associated with the Objects are identified. All Kinds associated with the Attributes are identified. A ranking criterion is applied to identified Kinds and Attributes. The highest-ranked portion of the Kinds and the highest-ranked portion of the Attributes that can readably be shown in a search result display are displayed.