AGGREGATE DATA MODELING STYLE

The paper presents our progress in defining an aggregate data modeling style using new operators with the standard data modeling language Idef1X. By defining a style, using an established notation, the proposed allows reuse of existing data modeling expertize. The style is intended to support data modeling for so called aggregate-oriented NoSQL databases

Mapping the UML to the Zachman Framework

This article offers an overview of the Zachman Enterprise Architecture Framework (ZEAF) and examines how the Unified Modeling Language (UML) can be used in describing enterprise architecture. The ZEAF is a classification scheme that organizes descriptive representations into a matrix of six distinct stakeholder perspectives and six unique concerns or aspects yielding a normalized approach in which, as a rule, particular cell content cannot be found in more than one cell. This paper presents a comparative review of four approaches for mapping UML onto ZEAF, which despite the above rule, use the same diagram types differently. At first, this appeared to be a problem, but our analysis discovered that it is result of UML’s rich and divers notation. This paper also attempts to answer several questions related to these different mappings recognizing an opportunity to extend ZEAF into a multidimensional representation

Implications of Closely Associated Computing Sciences Disciplines

Usually IS programs are in the College of Business either as a department or in a department with one or more business disciplines. Information Technology is the newest of the computing sciences and is just getting established at some universities. Recently there have been departments, schools, colleges formed that include Information System (IS), Information Technology (IT) and Computer Science (CS). This panel consists of an IS, IT and CS faculty member who will discuss the implications, cultures, advantages and disadvantages of a close association of different computing disciplines. Each of the panelist have experiences with two or more such programs at different states of their respective life cycles and at institutions of different types (Carnegie classification,) situated in diverse geographic locales and in diverse financial circumstances. These differences provide additional influences contributing to formation of our views and opinions. Are there common (not prejudicial) findings? For our students, having several faculty from related fields in adjacent departments, provides both short term proximity/convenience and a longer term hedge against employment setbacks. For faculty this provides a critical mass in their respective sub-disciplines and an opportunity for collaboration, self learning and professional growth. The Georgia Southern University model may prove beneficial to other colleges and universities considering this kind of merger. There are many economy of resource possibilities within this arrangement and some turf disagreements are inevitable. Hopefully, we can serve as both an example of how to consolidate related disciplines and some pitfalls to avoid

Engaging Students in Information Storage Management Courses

This panel will elaborate on faculty experiences with specific ways used to engage students in the Information Storage and Management, formerly Storage Technology, and the Virtualization coursework. The emphasize of the discussion will be on the mechanisms used in engaging students in learning and on experiences with various activities helpful for varying learning preferences/modes. All invited panelists are experienced faculty involved with subject matter courses via EMC’s Academic Alliance program. The resources made available via this alliance and through exchange among the faculty involved in teaching related subjects in IT and CS programs will be discussed and evaluated. The impact on students, their satisfaction, and success via certification and internship/job placement will be elaborated as well. Furthermore the panel will invite other faculty (conference participants) interested in teaching in the same/related subject areas to participate in discussions and exchange of relevant class materials

Domain/Mapping Model: A Novel Data Warehouse Data Mode

In order for a data warehouse to be able to adequately fulfill its integrative and historical purpose, its data model must enable the appropriate and consistent representation of the different states of a system. In effect, a DW data model, representing the physical structure of the DW, must be general enough, to be able to consume data from heterogeneous data sources and reconcile the semantic differences of the data source models, and, at the same time, be resilient to the constant changes in the structure of the data sources. One of the main problems related to DW development is the absence of a standardized DW data model. In this paper a comparative analysis of the four most prominent DW data models (namely the relational/normalized model, data vault model, anchor model and dimensional model) will be given. On the basis of the results of [1]a, the new DW data model (the Domain/Mapping model- DMM) which would more adequately fulfill the posed requirements is presented

Strukturiranje ekološki prihvatljivih elastomernih kompozitnih materijala

For the waste rubber recycling, it is obligative to know the chemical composition of the waste products, if it is to be used in the new composite elastomeric material formulation. The composite elastomeric materials obtained from the waste rubber powder have a very diverse application (farm floors, sports stadiums, tyres production, in construction as a vibration protection material). The aim of this work was to prepare elastomeric composites based on recycled elastomer powder (REP). A few types of elastomeric materials were synthesized based on natural rubber, polybutadiene rubber, styrene-butadiene rubber, (NR/BR/SBR, 40/40/20 phr), carbon black and recycled elastomer powder were synthesized. It was assessed that composites NR/BR/SBR/REP have shorter optimum curing time tc90 than samples without REP. By increasing the REP content the tc90 value and tensile strength are decreasing, but the abrasion resistance is increasing.Kod recikliranja otpadne gume neophodno je poznavati hemijski sastav otpadnog proizvoda, ukoliko će se on koristiti u recepturama za nove hibridne elastomerne materijale. Kompozitni elastomerni materijali dobijeni od praha otpadne gume imaju veoma raznovrsnu primenu (podovi na farmama, sportski stadioni, dobijanje pneumatika, u građevinarstvu kao materijali za zaštitu od vibracija itd). Cilj ovog rada je bio da se dobiju elastomerni kompoziti na osnovu reciklirane gume. Sintetisano je nekoliko tipova elastomernih materijala na osnovu prirodnog kaučuka, stiren-butadienskog kaučuka i polibutadienskog kaučuka (NR/BR/SBR, 40/40/20 phr), čestica čađi i recikliranog gumenog praha. Ustanovljeno je da kompoziti NR/BR/SBR/REP imaju kraće optimalno vreme umrežavanja u poređenju sa uzorcima NR/BR/SBR bez REP. Porastom količine REP smanjuje se vreme optimalnog umrežavanja i prekidna črstoća, a povećava se otpornost na abraziju

Quantitative analysis of the native presynaptic cytomatrix by cryoelectron tomography

The filamentous structures that tether exocytic vesicles to the plasma membrane in the active zone are rearranged in response to synaptic stimulation