By Akmal B. Chaudhri, Mary Loomis, Hewlett-Packard Professional Books

Myths approximately object-oriented databases are rampant. This booklet debunks them, so database directors and bosses could make trained judgements in regards to the technology. This e-book provides entire insurance of the "pros and cons" of object-oriented databases, supporting managers and directors come to a decision even if to enforce this strong know-how. via 18 case reports written by means of specialist practitioners, easy methods to determine the appropriate purposes for OODBMS platforms, and comprehend the requisites and technical tradeoffs concerned. The publication additionally contains many never-before-published counsel, tips and methods for effectively designing and enforcing OODBMS on your organization. All database practitioners contemplating object-oriented database administration platforms.

Show description

Read or Download Object databases in practice PDF

Best object-oriented software design books

Guide to the unified process featuring UML, Java, and design patterns

The UML, or Unified Modeling Language, is the de facto ordinary followed via the item administration workforce (OMG) and by way of just about all proprietors of item modeling instruments. The Unified procedure is explicitly designed to paintings with the UML and is a complete layout technique masking the vast majority of the existence cycle of a software program product.

JBoss at Work: A Practical Guide

Which includes a few recognized open resource items, JBoss is extra a relatives of interrelated companies than a unmarried monolithic program. yet, as with every instrument that is as feature-rich as JBoss, there are variety of pitfalls and complexities, too. so much builders fight with an identical matters while deploying J2EE purposes on JBoss: they've got hassle getting the numerous J2EE and JBoss deployment descriptors to interact; they've got hassle checking out easy methods to start; their initiatives do not have a packaging and deployment procedure that grows with the applying; or, they locate the category Loaders complicated and do not know the way to take advantage of them, that may reason difficulties.

Object databases in practice

Myths approximately object-oriented databases are rampant. This ebook debunks them, so database directors and executives could make educated judgements in regards to the expertise. This booklet offers entire insurance of the "pros and cons" of object-oriented databases, assisting managers and directors come to a decision even if to enforce this strong know-how.

Building Web Applications with ADO.NET and XML Web Services

Construct a data-intensive net software with XML internet prone and ADO. internet! Richard Hundhausen, Steven Borg, Cole Francis, and Kenneth Wilcox have mixed their years of workmanship during this worthwhile source to educate you the way a customary stressed company can leverage net providers in B2B trade.

Additional info for Object databases in practice

Sample text

The coefficients of cos μi and sin μi , in the de Moivre parametrisation of the one-turn matrix in Eq. 28), i = 1, n in n-d-f. See Sect. 2 for n ≥ 2. The Definitions 1 and 2 are general and extend to nonlinear coupled systems. Definition 3 extends to linear coupled lattice functions. In the coupled case, the matrix multiplying cos μi is not the identity and contains useful information. In fact, in the non-symplectic case, Definition 3 is the only sensible definition of the lattice functions since there are no invariants and no averages but there is a de Moivre representation as can be seen in Sect.

On a linear map, we proceed by first looking at the action of M on a linear function without any constant part. I will now show that the matrix for M in the space of linear functions is the transpose of the usual matrix M. 4 Such a function can be written as: f (z) = v1 z 1 + v2 z 2 . 37) The map M acts on f in the usual way of a map transforming functions: v1 M1i z i + v2 M2i z i (M f ) (z) = f (M z) = i = M †v 1 z1 + M †v 2 z2 . 38) is also the “pull back” operator of differential forms; not surprisingly the invariance of the Poisson under M is equivalent to the invariance of the canonical two-form i=1,N dz 2i−1 ∧ dz 2i under the pull back M .

7), we can rewrite Eq. 6): N F ◦ a ◦ a −1 + F ◦ a ◦ r ◦ a −1 + · · · + F ◦ a ◦ r ◦ a −1 N F ◦ a + F ◦ a ◦ r + ··· + F ◦ a ◦ rN = ◦ a −1 N →∞ N F + F ◦ r + ··· + F ◦ rN ◦ a −1 N → ∞ . 9) 1 By “general case”, I really mean general: 20 degrees of freedom, sixth-order, with magnet modula- tion and parameter dependence, spin, etc…!!! But concentrate on the simplest case always bearing in mind the feasibility of the general case. 2 Why Phasors and Normal Forms? 9) expresses a simple fact: the average of a function F is gotten from the average of the transformed function F = F ◦ a under a rotation.

Download PDF sample

Rated 4.55 of 5 – based on 35 votes